Design of Complexly Graded Structures inside Three-Dimensional Surface Models by Assigning Volumetric Structures

Figure 8

(a) Standard file for extrusion-based printing with two different colored materials and different deposition patterns. The voxel size in this figure is 1 mm and is filled in z direction with 8 red material strands (tool 1; red material; strand thickness 125 µm; traversing speed 200 mm/min; zero position of the nozzle with respect to tool installation in our machine) and 4 blue strands (tool 2; blue material; strand thickness 250 µm; traversing speed 500 mm/min; zero position of tool #2), leading to (b) different voxel filling patterns with adjusted path distances (hatch) for the same material used.

(a)

(b)